The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2024
Filed:
Mar. 05, 2021
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Andrew John Ouderkirk, Redmond, WA (US);
Nagi Hosni Elabbasi, Southborough, MA (US);
Spencer Allan Wells, Seattle, WA (US);
Christopher Stipe, Woodinvill, WA (US);
Kenneth Alexander Diest, Kirkland, WA (US);
Christopher Yuan Ting Liao, Seattle, WA (US);
Liliana Ruiz Diaz, Redmond, WA (US);
Laura Cressman, Carnation, WA (US);
Taha Masood, Sammamish, WA (US);
James Howard Thomas Ransley, Medford, MA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
A liquid lens includes a substrate, a transparent elastic membrane forming a cavity with the substrate, and a transparent fluid filling the cavity between the substrate and the membrane. The membrane has a pre-distorted, rotationally asymmetric shape in absence of the fluid in the cavity. When the cavity is filled with the fluid and the substrate is disposed vertically w.r.t. gravity at a pre-defined clocking angle, the membrane adopts a substantially rotationally symmetric shape due to elasticity of the membrane counteracting gravity exerting a downward force on the fluid in the cavity, reducing the effect of the gravity sag on optical performance of the liquid lens.